<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <!-- CSS -->
    <link rel="stylesheet" href="">
    <!-- CSS -->
    <style></style>
</head>
<body>

    <!-- JavaScript -->
    <script src=""></script>

    <!-- JavaScript -->
    <script>

        // 注释
        // hello world

    </script>
</body>
</html>